Force Messages Update

First of all I apologize for my level of English.

I have seen for some time that there are many people who do not have the update of Messages and the other day making a video call with a friend I discovered how to force that update. You go to make a video call from the app itself, you go to the bottom that says in the right corner "multimedia content" and you go to the fourth option and you will see that you put something like update messages or similar.

You touch it, you stay on that screen a couple of seconds, and you can cut the video call and after about three or four hours you will have the update.